[Quality] Document more integrations in the solution docs

[benironside]

Description

We have a lot of integrations that are only documented in the integrations docs. Some of them are frequently-used and/or strategic integrations. These could be integrated into our solution docs to help give the more visibility and illustrate how they fit in to our overall offering. We should tell users how our most important integrations help them achieve important use-cases (e.g. ingesting data that enables key Elastic features.)

We should identify which integrations meet this criteria, and provide detailed setup and usage guides for them.

Background & resources

Which documentation set does this change impact?

ESS and serverless

ESS release

Serverless release

Feature differences

API docs impact

Prerequisites, privileges, feature flags

No response